/**
 * Copyright (C) 2011 Whisper Systems
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package com.appspot.eusms.recipients;

import android.content.Context;
import android.graphics.Bitmap;
import android.net.Uri;
import android.os.Parcel;
import android.os.Parcelable;
import android.util.Log;

import com.appspot.eusms.contacts.ContactPhotoFactory;
import com.appspot.eusms.util.GroupUtil;

import com.appspot.eusms.recipients.RecipientProvider.RecipientDetails;

import org.whispersystems.textsecure.storage.CanonicalRecipient;
import org.whispersystems.textsecure.util.FutureTaskListener;
import org.whispersystems.textsecure.util.ListenableFutureTask;

import java.util.HashSet;

public class Recipient implements Parcelable, CanonicalRecipient {

    private final static String TAG = Recipient.class.getSimpleName();

    public static final Creator<Recipient> CREATOR = new Creator<Recipient>() {
        public Recipient createFromParcel(Parcel in) {
            return new Recipient(in);
        }

        public Recipient[] newArray(int size) {
            return new Recipient[size];
        }
    };

    private final HashSet<RecipientModifiedListener> listeners = new HashSet<RecipientModifiedListener>();

    private final String number;
    private final long recipientId;

    private String name;
    private Bitmap contactPhoto;
    private Uri contactUri;

    Recipient(String number, Bitmap contactPhoto, long recipientId,
              ListenableFutureTask<RecipientDetails> future) {
        this.number = number;
        this.contactPhoto = contactPhoto;
        this.recipientId = recipientId;

        future.setListener(new FutureTaskListener<RecipientDetails>() {
            @Override
            public void onSuccess(RecipientDetails result) {
                if (result != null) {
                    HashSet<RecipientModifiedListener> localListeners;

                    synchronized (Recipient.this) {
                        Recipient.this.name = result.name;
                        Recipient.this.contactUri = result.contactUri;
                        Recipient.this.contactPhoto = result.avatar;
                        localListeners = (HashSet<RecipientModifiedListener>) listeners.clone();
                        listeners.clear();
                    }

                    for (RecipientModifiedListener listener : localListeners)
                        listener.onModified(Recipient.this);
                }
            }

            @Override
            public void onFailure(Throwable error) {
                Log.w("Recipient", error);
            }
        });
    }

    Recipient(String name, String number, long recipientId, Uri contactUri, Bitmap contactPhoto) {
        this.number = number;
        this.recipientId = recipientId;
        this.contactUri = contactUri;
        this.name = name;
        this.contactPhoto = contactPhoto;
    }

    public Recipient(Parcel in) {
        this.number = in.readString();
        this.name = in.readString();
        this.recipientId = in.readLong();
        this.contactUri = in.readParcelable(null);
        this.contactPhoto = in.readParcelable(null);
    }

    public synchronized Uri getContactUri() {
        return this.contactUri;
    }

    public synchronized void setContactPhoto(Bitmap bitmap) {
        this.contactPhoto = bitmap;
        notifyListeners();
    }

    public synchronized void setName(String name) {
        this.name = name;
        notifyListeners();
    }

    public synchronized String getName() {
        return this.name;
    }

    public String getNumber() {
        return number;
    }

    public int describeContents() {
        return 0;
    }

    public long getRecipientId() {
        return recipientId;
    }

    public boolean isGroupRecipient() {
        return GroupUtil.isEncodedGroup(number);
    }

    public synchronized void addListener(RecipientModifiedListener listener) {
        listeners.add(listener);
    }

    public synchronized void removeListener(RecipientModifiedListener listener) {
        listeners.remove(listener);
    }

    public void notifyListeners() {
        HashSet<RecipientModifiedListener> localListeners;

        synchronized (this) {
            localListeners = (HashSet<RecipientModifiedListener>) listeners.clone();
        }

        for (RecipientModifiedListener listener : localListeners) {
            listener.onModified(this);
        }
    }

    public synchronized void writeToParcel(Parcel dest, int flags) {
        dest.writeString(number);
        dest.writeString(name);
        dest.writeLong(recipientId);
        dest.writeParcelable(contactUri, 0);
        dest.writeParcelable(contactPhoto, 0);
    }

    public synchronized String toShortString() {
        return (name == null ? number : name);
    }

    public synchronized Bitmap getContactPhoto() {
        return contactPhoto;
    }

    public static Recipient getUnknownRecipient(Context context) {
        return new Recipient("Unknown", "Unknown", -1, null, ContactPhotoFactory.getDefaultContactPhoto(context));
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || !(o instanceof Recipient)) return false;

        Recipient that = (Recipient) o;

        return this.recipientId == that.recipientId;
    }

    @Override
    public int hashCode() {
        return 31 + (int) this.recipientId;
    }

    public static interface RecipientModifiedListener {
        public void onModified(Recipient recipient);
    }
}
